JP2002333564A - Optical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conveniently and easily achieve highly accurate lens position adjustment with a simple configuration. SOLUTION: A lens holding frame 11 is attached freely movably to a frame member 10 within a plane approximately orthogonal to the optical axis. X and Y adjustment means 16 and 17 are attached freely rotatably between the frame member 10 and the lens holding frame 11. While the positional adjustment of the X axis direction of the lens holding frame 11 is performed by the rotational operation of the X adjustment means 16, the movement and turning of the Y axis direction is controlled and adjusted by the action of the Y adjustment means 17. Further, while the positional adjustment of the Y axis direction of the lens holding frame 11 is performed by the rotational operation of the Y adjustment means 17, the movement and turning of the X axis direction is controlled and adjusted by the action of the X adjustment means 16. Thus, the positional adjustment of the X axis direction and Y axis direction can be performed independently and quantitatively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical device having a lens, such as a camera and an observation device.

[0002]

2. Description of the Related Art Generally, in an optical apparatus, a plurality of lens groups constituting an optical system are accommodated and arranged in a lens holding frame, and the lens holding frame is positioned and assembled with a frame member. It is attached to a lens barrel of an optical device such as a camera. Such an optical system is required to accurately determine the relative positions of a plurality of lens groups in order to sufficiently exhibit its performance. For this reason,
2. Description of the Related Art Conventionally, various lens adjustment techniques for performing accurate position adjustment of a plurality of lens groups have been proposed.

[0003] As such a lens adjustment technique, for example, a lens holding frame in which a lens group is assembled is accommodated and arranged with a predetermined gap with respect to a frame member. There are various methods for adjusting the position in a plane orthogonal to the axis, and positioning and fixing the lens holding frame after the adjustment by bonding the lens holding frame to a frame member.
Japanese Patent Application Laid-Open No. 71587 proposes a technique in which two eccentric pins are provided, and the eccentric pins are rotated to perform adjustment in two directions substantially orthogonal to each other.

However, in the former method, the adjustment can be performed with a simple configuration. However, the degree of freedom in the adjustment direction of the lens holding frame is large, and some adjustment machine is required to perform the precise adjustment. In some cases, the workability was not good.

In the latter technique described in Japanese Patent Application Laid-Open No. H11-271587, when one of the two eccentric pins is operated, the lens holding frame is centered on the other eccentric pin. Is rotated, it is difficult to perform high-precision adjustment.

[0006]

As described above, the conventional optical apparatus has a disadvantage that the position adjustment of the lens mounted on the lens holding frame is very troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an optical apparatus which has a simple structure and which can easily and easily realize high-precision lens position adjustment. And

[0008]

According to the present invention, there is provided a lens holding frame for holding a lens, and a frame member for supporting the lens holding frame so as to be capable of being translated in a plane substantially perpendicular to the optical axis of the lens. A first biasing means for urging the lens holding frame in a second direction substantially perpendicular to the first direction so as to be movable in a direction along a first direction substantially perpendicular to the optical axis of the lens; Urging means, second urging means for urging the lens holding frame in the first direction so as to be movable in a direction along the second direction, and an intermediate portion for holding the lens holding frame in the second direction. The lens holding frame is engaged with the lens holding frame in a state in which the lens holding frame is allowed to move in the direction of, and one end is operably assembled to the frame member. A first position for adjusting the position of the optical axis of the lens in the first direction by urging the lens in the direction Adjusting means, the intermediate portion is engaged with the lens holding frame in a state where the lens holding frame allows the movement in the first direction, and one end is operably assembled to the frame member, A second position adjusting means for moving and urging the lens holding frame in the second direction in conjunction with the operation to adjust the position of the optical axis of the lens in the second direction; The equipment was configured.

According to the above arrangement, when the position of the lens holding frame is adjusted with respect to the frame member, when the first position adjusting means is operated, the movement in the first direction is performed by the second position adjusting means. When the allowable lens holding frame is moved and adjusted in the first direction while receiving the urging force of the second urging means, and the second position adjusting means is operated, the first position adjusting means causes the second position adjusting means to move the second lens adjusting frame. The lens holding frame, which is allowed to move in the direction, is moved and adjusted in the second direction while receiving the urging force of the first urging means, so that the position adjustment in the first and second directions can be performed. Each is adjusted independently. This makes it possible to quantitatively perform the adjustment of the movement of the lens holding frame in the first and second directions in a plane substantially parallel to the optical axis of the lens while realizing a simple configuration. Thus, the position of the optical axis can be easily adjusted with high accuracy.

Further, the present invention provides a lens holding frame for holding a lens, a frame member for supporting the lens holding frame so as to be capable of being translated in a plane substantially perpendicular to the optical axis of the lens, and a lens holding frame. First biasing means for moving the frame in a direction along a first direction substantially perpendicular to the optical axis of the lens and biasing the frame in a second direction substantially perpendicular to the first direction; A second urging means for urging the lens holding frame in the first direction so as to be movable in a direction along the second direction, and a first urging means engaged with the lens holding frame at an intermediate portion. One end portion of which is rotatably supported by the frame member, and the first contact portion moves the lens holding frame in the first direction in conjunction with the rotation operation. A first position adjusting member for adjusting a position of the optical axis of the lens in a first direction; A second abutting portion engaged with the holding frame, one end of which is rotatably supported by the frame member, and the second abutting portion engages the lens holding frame in conjunction with the rotating operation; Moving the lens holding frame in the second direction to adjust the position of the optical axis of the lens in the second direction; and operating the first position adjusting member to adjust the position of the lens holding frame. First guide means for regulating movement in the second direction and guiding the movement in the first direction; and operating the second position adjusting member in the first direction of the lens holding frame. The optical apparatus is provided with second guide means for restricting the movement and guiding the movement in the second direction.

According to the above arrangement, when the position of the lens holding frame is adjusted with respect to the frame member, when the first position adjusting member is rotated, the lens holding frame is moved in the second direction by the first guide means. Is regulated in the first direction while receiving the urging force of the second urging means,
When the second position adjusting means is rotated, the movement of the lens holding frame in the first direction is restricted by the second guiding means, and the second holding means receives the urging force of the first urging means. , The position adjustments in the first and second directions are independently adjusted. This allows
After realizing a simple configuration, it is possible to quantitatively adjust the movement of the lens holding frame in the first and second directions in a plane substantially parallel to the optical axis of the lens, which is simple and easy. The position of the optical axis can be adjusted with high accuracy.

The present invention is also directed to the lens, wherein the first urging means is located at a position facing the first contact portion of the first position adjusting member with the optical axis interposed therebetween. Elastic engagement is performed at two positions around the optical axis around the holding frame, and the second urging means is moved to the second contact portion of the second position adjusting member with the optical axis interposed therebetween. It is configured to be elastically engaged at two opposing positions, which sandwich the optical axis around the lens holding frame.

According to the above construction, the first and second urging means are elastically engaged with the lens holding frame at two positions around the optical axis around the first and second position adjusting members. First
By biasing the lens holding frame movably in the second direction, stable movement adjustment in the first and second directions can be realized while preventing the lens holding frame from being biased.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an optical apparatus according to an embodiment of the present invention. A frame member 10 is mounted on a lens barrel 8 of a camera body 9 shown in FIG. 2, for example. A lens holding frame 11 is attached to the frame member 10. In FIG. 1, the optical axis direction is indicated by Z, a first direction orthogonal to the optical axis is indicated by X, and a second direction orthogonal to the optical axis and the first direction is indicated by Y.

In FIG. 2, reference numeral 7 denotes a release button, 6
Is a zoom switch, 5 is a viewfinder window, 4 is a distance measurement window, 3
Denotes a strobe window, and 2 denotes a display unit.

The lens holding frame 11 has a mounting ring 111.
Flange-shaped frame portion 11 that forms a substantially flat surface with respect to the optical axis on one side
2 are formed therein, and first and second lenses 12 are formed therein.
13 are accommodated and arranged at predetermined intervals. Of these, the mounting ring 111 has, for example, four position-regulating bayonet claws 113 (only one is shown in FIG. 1 for convenience of the drawing) at predetermined intervals on its outer wall.

On the other hand, the frame 112 is provided with first and second guide means in the X-axis and Y-axis directions (first and second directions) which are substantially orthogonal to the optical axis and orthogonal to each other. Constituting first and second long holes 114 and 115 are formed. As shown in FIG. 3, the frame 112 is located at a position sandwiching the optical axis with the first and second long holes 114 and 115 of the side wall, and has a predetermined distance in the Y-axis and X-axis directions. A pair of X spring contact portions 116, 116 and a Y spring contact portion 117,
117 is formed.

Further, the frame member 10 is provided with a mounting surface 101 which forms a plane substantially perpendicular to the optical axis, corresponding to the frame 112 of the lens holding frame 11. At the approximate center, an insertion opening 102 is formed corresponding to the mounting ring 111 of the lens holding frame 11. The insertion opening 102 is formed a predetermined amount larger than the outer shape of the mounting ring 111 of the lens holding frame 11 so that the lens holding frame 11 can be adjusted with respect to the frame member 10 in a plane perpendicular to the optical axis. Have been. In addition, in this insertion slot 102,
In its peripheral part, for example, four bayonet notches 103
Are formed at predetermined intervals at positions corresponding to the bayonet claws 113 provided on the mounting ring 111 of the lens holding frame 11.

When assembling the lens holding frame 11 to the frame member 10, first, the bayonet claw 113 of the lens holding frame 11 is inserted into the bayonet notch 103.
And the frame holding member 11 and the lens holding frame 11 are bayonet-coupled by rotating one of them. In this state, the position of the lens holding frame 11 in the optical axis direction with respect to the frame member 10 is regulated as shown in FIG. 4, and the lens holding frame 11 can be displaced in a gap generated between the mounting ring 111 and the insertion opening 102. I have. Further, in the assembled state of the lens holding frame 11 and the frame member 10, the mutual bayonet claw 113 and the mounting surface 101 cooperate to regulate the position in the optical axis direction.

Further, the frame member 10 has a mounting surface 10
First, the first to third X spring engaging portions 104, 105, 10
6 and first to third Y spring engaging portions 107, 108, 10
9 are formed corresponding to the X spring contact portion 116 and the Y spring contact portion 117 of the lens holding frame 11, respectively. These first to third X spring engaging portions 104, 105, 10
6 and first to third Y spring engaging portions 107, 108, 10
Reference numeral 9 denotes a regulating X spring member 14 (a second urging unit) and a Y spring member 15 which are protrudingly provided at a predetermined interval, and each serve as urging means. An intermediate portion of the (first urging means) is engaged.

The X spring member 14 and the Y spring member 15
As shown in FIG. 3, both ends of the lens holding frame 1
The X spring contact portion 116 and the Y spring contact portion 117 of the frame portion 1
Are attached so as to apply urging forces in the X and Y axis directions. Among them, the X spring member 14 is connected to the lens holding frame 11.
Are slidable with the X spring abutting portion 116 so as to allow the movement in the Y-axis direction.
Both ends of the spring member 15 are connected to the Y spring contact portion 1 so as to allow the lens holding frame 11 to move in the X-axis direction.
17 and can be slid.

The frame member 10 has through holes 10a and 10b on its mounting surface.
5 are provided.

Here, X and Y adjusting members 16 and 17 constituting first and second position adjusting means are rotatably operated in the first and second long holes 114 and 115 of the lens holding frame 11. Inserted into.

That is, the X and Y adjusting members 16 and 17 are provided with operating portions 161 and 171 at the base end, and formed with grooves 162 and 172 for stopping the ring at the distal end. The eccentric portions 163 and 173 are formed in the X and Y adjusting members 16 and 17 as contact portions at the intermediate portions thereof, corresponding to the first and second long holes 114 and 115. Eccentric portions 163 and 173 of these X and Y adjustment members 16 and 17
The eccentricity is set appropriately according to the optical axis adjustment amount.

The X and Y adjusting members 16 and 17 have first and second long holes 11 of the lens holding frame 11 at their distal ends.
4 and 115, the mounting surface 101 of the frame member 10
Are inserted through the through holes 10a and 10b, and the grooves 162,
E-rings 18 are respectively attached to the frame members 172
It is rotatably supported at zero.

Here, the X and Y adjustment members 16, 1
7, the eccentric portions 163, 173 are accommodated in the first and second long holes 114, 115 of the lens holding frame 11, and the first and second eccentric portions 163, 173 are interlocked with the rotation operation.
The short-diameter portions of the long holes 114 and 115 are pressed against the urging forces of the X and Y spring members 14 and 15 to press the lens holding frame 1.
1 is quantitatively moved and biased independently in the X and Y axis directions.
At this time, when the X adjusting member 16 is rotated, the Y
Second long hole 11 engaged with eccentric portion 173 of adjustment member 17
The lens holding frame 11 is moved in the X-axis direction along
In the state where the linear movement in the axial direction is allowed and the Y adjustment member 17 is rotated, the lens holding frame 11 is moved along the first long hole 114 engaged with the eccentric portion 163 of the X adjustment member 16.
It is moved in the axial direction, and linear movement in the Y-axis direction is allowed.

FIGS. 4 and 5 show a cross section of the position adjusting means in the Y-axis direction in FIG. 3. The members corresponding to the position adjusting means in the X-axis direction have substantially the same structure. Add a sign in parentheses.

In the above configuration, the lens holding frame 11 is
As described above, the bayonet claw portion 113 of the frame member 10 is inserted into the bayonet notch 103 of the frame member 10 and one of them is rotated to be bayonet-coupled to the lens holding frame 11.

In this state, the X and Y adjusting members 1 are inserted into the first and second long holes 114 and 115 of the lens holding frame 11.
6, 17 are inserted from the distal end thereof, and the groove 162,
172 are the through holes 10a, 10a on the mounting surface 101 of the frame member 10.
b, the E-rings 18 are attached to the grooves 162 and 172, respectively, and are rotatably supported by the frame member 10. Here, the eccentric portions 163 and 173 of the X and Y adjustment members 16 and 17 are accommodated by being engaged with the first and second long holes 114 and 115 of the lens holding frame 11, and the lens holding frame 11 is It is assembled to the frame member 10 at an initial position shown in FIG.

The first to third X spring engaging portions 104, 105, and 106 of the frame member 10 have the X spring member 14 attached thereto.
The both ends of the X spring member 14 are attached to the X spring contact portion 116 of the frame 112 of the lens holding frame 11 by Y.
It is movable in the axial direction, and is brought into contact so as to apply an urging force in the X axis direction. Further, the first to third Y spring engaging portions 10
7, 108, and 109, an intermediate portion of a Y spring member 15 is engaged.
The Y-spring contact portion 117 of the first frame is movable in the X-axis direction and is brought into contact with the Y-spring contact portion 117 so as to apply an urging force in the Y-axis direction.

Here, the X adjusting member 16 and the Y adjusting member 17 are rotatable inside the frame member 10 and outside the lens holding frame 11 when the operating portions 161 and 171 are viewed from the optical axis direction. Is located.

As described above, the frame member 10 and the lens holding frame 11
X adjustment member 16 and Y adjustment member 1 assembled between
7, the lens holding frame 11 is linearly moved in the X-axis direction and the Y-axis direction by the rotation operation, and the positions of the first and second lenses in the X-axis direction and the Y-axis direction with respect to the optical axis are adjusted. You.

That is, when adjusting the first and second lenses 12 and 13 of the lens holding frame 11 in the Y-axis direction with respect to the optical axis, at the initial position of the Y adjustment member 17 shown in FIG. Rotation operation is performed from the direction of the optical axis using an adjustment jig such as a screwdriver. Then, the Y adjusting member 17 is moved to the eccentric portion 17.
3, as shown in FIG. 5, the second elongated hole 1 of the lens holding frame 11.
15 is urged to move in the Y-axis direction against the urging force of the Y spring member 15.

When the Y adjusting member 17 is rotated, the lens holding frame 11 is moved to the eccentric portion 1 of the X adjusting member 16.
The first spring member 14 is guided to move in the Y-axis direction along the first long hole 114 engaged with the third member 63, and both ends of the X spring member 14 are slid by the X-spring contact portion 116 of the lens holding frame 11 to move in the Y-axis direction. , The eccentric portion 16 of the X adjustment member 16 is guided.
The 3 and the first long hole 114 function as guide means in the Y-axis direction, and stable and smooth position adjustment in the Y-axis direction is performed.

When adjusting the first and second lenses 12 and 13 of the lens holding frame 11 in the X-axis direction with respect to the optical axis, the X adjusting member 16 is adjusted in substantially the same manner from the optical axis direction. Rotate using a jig. Then, the X adjustment member 16
The eccentric portion 163 moves and urges the first elongated hole 114 of the lens holding frame 11 in the X-axis direction against the urging force of the X spring member 14.

When the X adjusting member 16 is rotated, the lens holding frame 11 is moved to the eccentric portion 1 of the Y adjusting member 17.
In addition to moving and guiding along the second long hole 115 engaged with 73, both ends of the Y spring member 15 are slid by the Y spring contact portion 117 of the lens holding frame 11 to guide straight in the X-axis direction. Thus, the eccentric portion 173 of the Y adjustment member 17 and the second elongated hole 115 function as a guide means in the X-axis direction,
Stable and smooth position adjustment in the axial direction is performed.

Then, as described above, the lens holding frame 11
When the first and second lenses 12 and 13 are adjusted in the X-axis and Y-axis directions with respect to the optical axis, the movement of the lens holding frame 11 in the optical axis direction depends on the bayonet claw 113 as described above. The position is regulated by the engagement relationship with the mounting surface 101, and linear movement adjustment in the X-axis and Y-axis directions in a plane substantially orthogonal to the optical axis is performed.

Thus, the first position adjustment in the X-axis direction is performed.
X, which is the first position adjusting member constituting the position adjusting means of FIG.
The adjustment member 16 cooperates with the X spring member 14 as a linear guide that regulates movement and rotation of the lens holding frame 11 in the Y-axis direction when performing position adjustment in the Y-axis direction by the Y adjustment member 17. Function. The Y adjustment member 17, which is the second adjustment member that constitutes the second position adjustment means for performing the position adjustment in the Y axis direction, cooperates with the Y spring member 15 in the X axis direction by the X adjustment member 16. Lens holding frame 1 for adjustment
It also functions as a rectilinear guide that regulates movement and rotation in the X-axis direction.

When the position adjustment in the X and Y axis directions is completed, the lens holding frame 11 is fixed to the frame member 10 at, for example, three locations around the lens holding frame 11 and the lens holding frame 11 is fixed to each other. The fixing means is bonded and fixed by sufficiently increasing the urging force of the X spring member 14 and the Y spring member 15 so that the lens holding frame 11 is not displaced even when an impact or the like is applied. Alternatively, the lens holding frame 11 may be fixed to the frame member 10 without performing the above operation.

As described above, in the optical apparatus, the lens holding frame 11 is movably assembled to the frame member 10 in a plane substantially perpendicular to the optical axis, and the X and Y adjusting members 16 , 17 are rotatably mounted, and the rotation of the X adjustment member 16 adjusts the position of the lens holding frame 11 in the X axis direction and moves the lens holding frame 11 in the Y axis direction by the action of the Y adjustment member 17 and the like. The rotation of the lens holding frame 1 is controlled by the rotation of the Y adjustment member 17.
1 is adjusted in the Y-axis direction, and the X adjustment member 1 is adjusted.
6, the movement is adjusted in a state where the X-axis direction and the rotation are restricted, and the position adjustment in the X-axis direction and the Y-axis direction is performed.
It was configured so that it could be adjusted quantitatively independently.

According to this, components can be reduced.
The structure can be simplified easily, and quantitative adjustment in the X-axis direction and the Y-axis direction according to the amount of rotation of the X and Y adjustment members 16 and 17 can be easily performed. Thus, highly accurate position adjustment of the lens holding frame 11 can be realized.

According to this, for example, when the optical axis adjustment of the optical system constituting the optical apparatus is performed, the lens holding frame 11 which is a feature of the present invention is moved through the X adjustment member 16 and the Y adjustment member First, the frame member 10 assembled in a plane substantially perpendicular to the axis is assembled and arranged with a lens group of another frame member constituting the optical system. The degree of eccentricity of the frame member with respect to the lens optical axis is measured. The eccentricity of the optical system is adjusted by rotating the X adjusting member 16 and the Y adjusting member 17 in accordance with the measured eccentric amount to adjust the positions in the X axis direction and the Y axis direction. be able to.

As a result, the step of measuring the amount of eccentricity of the lens and the step of adjusting the eccentricity can be performed separately, so that a simple and easy assembling operation is realized.

Further, for example, as shown in FIG. 2, a frame member 10 is provided at the front end of the lens barrel 8 and the lens holding frame 11 can be adjusted on the frame member 10 so that a driver or the like can be cured from the optical axis direction. Since the adjustment operation can be performed using the tool, the adjustment of the optical device in a finished product state can be easily performed. In this case, if a donut-shaped plate member or the like having an opening in the lens portion is attached to the end of the frame member 10 after the adjustment, the adjustment mechanism can be covered, and the appearance is not impaired.

In the above embodiment, a case has been described in which the frame member 10 and the lens holding frame 11 are bayonet-coupled and movably combined in a plane substantially perpendicular to the optical axis. However, the present invention is not limited to this connection configuration, and can be arranged in combination using another connection configuration.

Therefore, the present invention is not limited to the above embodiments, and various other modifications can be made in the implementation stage without departing from the scope of the invention.
Furthermore, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

For example, even if some components are deleted from all the components shown in each embodiment, the problem described in the section of the problem to be solved by the invention can be solved and the effects of the invention are described. When an effect is obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.

Based on the above-described embodiment, (1) a lens holding frame for holding a lens, and a frame member for supporting the lens holding frame so as to be able to translate in a plane substantially perpendicular to the optical axis of the lens. A first direction for urging the lens holding frame in a second direction substantially perpendicular to the first direction so as to be movable in a direction along a first direction substantially perpendicular to the optical axis of the lens; Urging means, second urging means for urging the lens holding frame in the first direction so as to be movable in a direction along the second direction, and an intermediate portion for holding the lens holding frame in the first direction. The lens holding frame is engaged with the lens holding frame in a state in which the lens holding frame is allowed to move in the direction of 2, and one end of the lens holding frame is operably supported by the frame member. To adjust the position of the optical axis of the lens in the first direction. Position adjusting means, the intermediate portion is engaged with the lens holding frame in a state where the lens holding frame allows the movement in the first direction, and one end is operably supported by the frame member, Second position adjusting means for moving and urging the lens holding frame in the second direction in conjunction with the operation to adjust the position of the optical axis of the lens in the second direction. An optical device characterized by the above features can be provided.

(2) In the above description of (1), the first position adjusting means has a function of guiding the movement of the lens holding frame in the second direction at the time of adjustment by the second position adjusting means. The second position adjusting means is provided with the first position adjusting means.
It is possible to provide an optical apparatus having a function of guiding the movement of the lens holding frame in the first direction at the time of adjustment by the position adjusting means.

(3) a lens holding frame for holding a lens;
A frame member for supporting the lens holding frame so as to be capable of being translated in a plane substantially perpendicular to the optical axis of the lens; and a first direction substantially perpendicular to the optical axis of the lens. A first urging means movably in a direction along the first direction and urges the lens holding frame in a second direction substantially perpendicular to the first direction, and the lens holding frame is movable in a direction along the second direction. A second urging means for urging in the first direction, and a first abutting portion engaged with the lens holding frame at an intermediate portion, one end of which is rotatably operated by the frame member. The first contact portion moves the lens holding frame in the first direction in conjunction with a rotation operation, and adjusts the position of the optical axis of the lens in the first direction. And a second abutment portion, the intermediate portion of which is engaged with the lens holding frame, and one end portion of which rotates with the frame member. Is created rotatably supported, in conjunction with the rotation operation the second contact portion of the lens holding frame, the second
And a second position adjusting member for adjusting the position of the optical axis of the lens in the second direction, and cooperating with the first urging means in an operating state of the first position adjusting member. The first guide means for acting to restrict the movement of the lens holding frame in the second direction to guide the movement in the first direction, and the second position adjusting member is operated in the second state by operating the second position adjusting member. A second guide means for restricting the movement of the lens holding frame in the first direction and guiding the movement in the second direction in cooperation with the urging means. Equipment can be provided.

(4) In the above description of (3), the first biasing means is provided at a position facing the first contact portion of the first position adjusting member with the optical axis interposed therebetween. The second urging means is elastically engaged at two positions around the optical axis around the lens holding frame, and the second urging means is configured to move the second position adjusting member with respect to a second contact portion of the second position adjusting member. An optical device characterized by being elastically engaged at two positions on the periphery of the lens holding frame and on the opposite side of the optical axis and sandwiching the optical axis.

[0053]

According to the present invention, it is possible to provide an optical apparatus which has a simple structure and which can easily and easily realize high-precision lens position adjustment.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view shown for explaining a main configuration of an optical apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view shown for explaining a schematic configuration of a camera to which the configuration shown in FIG. 1 is applied;

FIG. 3 is a plan view showing the assembled state of FIG. 1 viewed from the optical axis direction.

FIG. 4 is a cross-sectional view showing FIG. 3 in a Y-axis direction.

5 is a cross-sectional view showing one state of adjustment in the Y-axis direction in FIG.

[Explanation of symbols]

 2 Display part. 3 ... Strobe window. 4. Distance measuring window. 5 Finder window. 6 Zoom switch. 7 ... Release button. 8 ... lens barrel. 9 Camera body. 10 Frame member. 101 ... Mounting surface. 102 ... insertion slot. 103 ... Bayonet notch. 104 1st X spring engagement part. 105 ... second X spring engaging portion. 106 ... third X spring engaging portion. 107 1st Y spring engagement part. 108... Second Y spring engaging portion. 109 3rd Y spring engagement part. 10a: Through-hole. 10b ... through-hole. 11: Lens holding frame. 111 ... Mounting ring. 112 ... Frame part. 113 ... Bayonet claw part. 114 1st long hole. 115 ... second long hole. 116 ... X spring contact part. 117 ... Y spring contact portion. 12 The first lens. 13 Second lens. 14 ... X spring member. 15 Y spring member. 16 X adjustment member. 161 ... operation unit. 162 ... groove. 163: Eccentric part. 17 ... Y adjustment member. 171... Operation unit. 172 ... groove. 173: Eccentric part. 18 ... E-ring.

Claims (3)

[Claims] A lens holding frame for holding a lens; a frame member for supporting the lens holding frame so as to be capable of being translated in a plane substantially orthogonal to an optical axis of the lens; First biasing means for biasing in a second direction substantially orthogonal to the first direction so as to be movable in a first direction substantially orthogonal to the optical axis of the lens; and the lens holding frame. Biasing means for biasing the lens holding frame in the first direction so as to be movable in a direction along the second direction, and an intermediate portion allowing the lens holding frame to move in the second direction. In this state, the lens holding frame is engaged with the lens holding frame, and one end is operably assembled to the frame member. The lens holding frame is moved and urged in the first direction in conjunction with the operation. A first position adjusting means for adjusting a position of the optical axis of the lens in a first direction; The lens holding frame is engaged with the lens holding frame in a state where the lens holding frame is allowed to move in the first direction, and one end of the lens holding frame is operably attached to the frame member. An optical apparatus comprising: a second position adjusting unit configured to move and bias a holding frame in the second direction to adjust a position of the optical axis of the lens in a second direction. 2. A lens holding frame for holding a lens, a frame member for supporting the lens holding frame so as to be able to translate in a plane substantially orthogonal to an optical axis of the lens, and the lens holding frame, A first urging means which is movable in a direction along a first direction substantially orthogonal to the optical axis of the lens and urges in a second direction substantially orthogonal to the first direction; A second urging means for urging the frame in the first direction so as to be movable in a direction along the second direction; a first contact portion which is engaged with the lens holding frame at an intermediate portion Has one end rotatably supported by the frame member,
A first position adjusting member that adjusts a position of the optical axis of the lens in a first direction by the first contact portion moving the lens holding frame in the first direction in conjunction with a rotation operation; An intermediate portion having a second contact portion engaged with the lens holding frame, one end portion of which is rotatably supported by the frame member;
A second position adjusting member for adjusting the position of the optical axis of the lens in the second direction by the second contact portion moving the lens holding frame in the second direction in conjunction with the rotation operation; A first guide unit that regulates movement of the lens holding frame in the second direction and guides movement of the lens holding frame in the first direction when the first position adjustment member is in an operating state; An optical device, comprising: a second guide means for restricting the movement of the lens holding frame in the first direction and guiding the movement in the second direction while the position adjusting member is being operated. . 3. The first biasing means is located at a position opposed to a first contact portion of the first position adjustment member with the optical axis interposed therebetween, and is provided around a periphery of the lens holding frame. And the second biasing means is located at a position facing the second contact portion of the second position adjusting member with the optical axis interposed therebetween. 3. The optical device according to claim 2, wherein the optical device is elastically engaged at two positions around the optical axis around the lens holding frame.